Miami University has published several handouts helping students with the writing process, grammar, punctuation, and citing sources.  

The Carey Business School offers several workshops helping students write memos, cases and bibliographies. As well as tools to help format papers and avoid plagiarism. 

Their University Library provides a guide to citations, as well as the opportunity to schedule meetings with tutors and join workshops. They also have the textbook "Ultimate Guide to Business Writing" by Julian Maynard-Smith available. 

The University of Utah provides writers with several online resources, helping writers with their communication and conceptualization skills. They also provide a citation guide. 

Arkansas's Business Communication lab provides writers with several guides on a range of topics including tone, pronouns, help with case studies.